Embroidery-trimming machine.



R.- LOEB.

EMBROIDERY TRIMMING MACHINE.

APPLICATION FILED DECJS, I909.

Pdfented Nov. 14, 1916.

3 SHEETS-SHEET 2.

IIIHMIIIII IHIII llllll Ill mr Nouns runs 00.. Pnora'umu \vAsmuuvau. o.c

R. LOEB.

EMBROIDERY TRIMMING MACHINE.

APPLICATION men Mac. 18. I909.

1 ,204,997. Patented Nov; 14, 1916.

3 SHEElS-SHEET 3- m: mmms Rzrzls cm. Puma-1.1mm, WASMINGIDN. n. c

imirnn srnrns ATE @FFEQE.

RUDOLF LOEB, 0F CAMDEN, NEW JERSEY.

invented certain Improvements in Embroidery-Trimming lvlachines, ofwhich the following is a specification.

My invention relates to mechanical means for cutting or trimmingembroidery edging;

the machine forming the subject of my invention being particularlyadapted for cutting or separatingthat form of embroidery known asHamburg edging from strips or sections of material containing a numberof edgings as such form of en' broidery is usually made. As is wellknown, such embroidery comprises a series of curved scallops formed bymeans of buttonhole or other stitching in the body of a sheet or stripof fabric, which stitching has the effect of providing a raised surfaceconsisting of a number of curved projections extending in a relativelystraight line; such projections being substantially hard or firm and ofan ornamental character. As noted, this type of embroidery ismanufactured in the form of a strip or sheet of fabric containing aplurality of embroidered lines subsequently forming edgings, and whensuch material is used as a trimming for garments or for other purposes,it is necessary to separate the embroidered edge from the materialbeyond such edge and forming the support for the next embroidered edge;and the object of my invention is to provide mechanical means foraccomplishing this work.

The essential feature of my invention consists of a horizontallydisposed horizontally reciprocating knife adapted to cut or shear thematerial containing the embroidered or stitched edges directly adjacentoneiof said embroidered or stitched edges. This knife is carried bysuitable means mounted so as to be reciprocated, and said knife isarranged to work diagonally with respect to the line of movement ofthefabric to be trimmed, being so disposed that it cuts on the upperside of the fabric directly adja cent one of the embroidered or stitchededge and without damaging in any way said:

embroidered or stitched edge.

A further object of my invention is to Specification of Letters Patent.

EMBBOIDERY-TYRIMMING MACHINE.

Patented Noiniet, 1916.

- Application filed December 18, 1909. Serial nasaarso.

provide means for facilitating the work of the cutting blade and toinsure a perfect trimming action without danger of damaging the goodsoperated upon.

These and other features of my invention are more fully describedhereinafter, reference being had to the accompanying drawings, in which:

Figure 1, is a plan view of apparatus embodying my invention and capable.of

cutting or trimming embroidery such as Hamburg edging. Fig. 2, is afront eleration of the same. Fig. 3, is a sectional view on the lineIII-J11, Fig. 1. Fig. 4, is a plan view of sufiicient of the embroiderytrimming means to illustrate a modified construction within the scope ofmy invention. Fig. 5, is a sectional view on the line VV, Fig. 4. Fig.6, is an enlarged sectional View similar to Fig. .5, illustrating themanner in which the embroidered edging is trimmed. and Fig. 7, is a viewillustrating a form of embroidered fabric capable of being trimmed bythe machine forming the subject of my invention. i

In the present embodiment of my invention, I have shown a machinecapable of cutting or trimming a plurality of edgings,

but it will be understood that the cutting' mechanism and the means foroperating the same are exactly alike in each instance, hence thedescription is directed to but a single set of coacting elements foreffecting the desired result.

In the drawings herewith, 1 represents aof the :machine is a combinedguide and" guard 7 for a cutting blade or knife 8. This cutting blade isin the formv of a very thin strip of metal wound upon a: hub 10 carriedby a spindle '11 journaled'in a suitable sup port- 12 carried by saidguide 7; the carrying means for said knifehaving a fixed rela tion withrespect to the guide. The com bined guard and supporting guide carryingthe cutting blade is arranged to be reciprocated in Ways 5 in saidbracket 6; motion for this purpose being imparted by means of an arm 15connected to an eccentric 16 driven by a shaft 17 suitably journaled onthe bed-plate 2 and driven by a belt 18 and a pulley 19; the beltextending from a pulley (not shown) j ournaled on the frame of themachine and suitably driven. The arm 15 is secured to the rear end ofthe guard or guide 7 before referred to, and the eccentric 16 may have astrap with a rounded surface to engage a hub 16 with a similar surface;such elements providing substantially a ball and socket joint. At thesame time that reciprocating motion. is imparted to the guide or guard 7the knife or blade 8 is fed gradually forward so that its active cuttingedge is being constantly renewed to insure the proper trimming of theembroidery edging.

The driving means consists of a shaft 20 with universal couplings 21connecting it to a shaft 22 having a gear wheel 23 which in turn isdriven by a pinion 24 mounted so as to receive movement from acounteracts.

shaft 25 through the medium of a gear wheel 26 and pinion 27. The maindriving shaft is vertical and is shown at 28 carrying a worm 29 meshingwith a worm wheel 29 whereby movement may be imparted to a shaft orspindle 3O journaled on the bedplate 2, and having a pinion 31 meshingwith a gear wheel 32 mounted on a shaft or spindle 33 having a pinion 34meshing with a gear wheel 35 on said shaft 25.

The movement of the shaft 25 is so proportioned that the feed of theknife is very gradual, and such movement may be transmitted to the knifeby means of pinions 36,

37, 38 and 39, shown more clearly in Fig. 3,

which drive a pair of rollers 40 and 41 between and by which the knifeblade is fed. The knife blade is wound upon its hub under tension andsuitably secured thereto, and as it is. drawn off by the friction rolls40 and 41, the force of .such tension tends to-keep it wound upon thehub.

The fabric is delivered across the table 3, preferably under tension,and the knife blade 8 as it is reciprocated by the guard or guide 7 outsdirectly against the embroidered orstitched edge of the edging; suchknife cutting on the upper side of the fabric against the beveled edgeof a plate 45 mounted on the table 3 and having such beveled edge inabsolute parallelism with the edge of the cutting blade. This plate 45,which is adjustably mounted and may have its position regulated throughthe medium of screws 45; the table being slotted at 47 for the purpose,forms an anvil or shear plate with which the knife blade co- As the workprogresses, the main body of the fabric. containing the embroiderededges to be cut may be wound upon a roller 46, while the cut or trimmededge may pass loosely into a suitable receptacle. Tension may beprovided for the roller 46, consisting of a weighted roller 47 and afriction roller 48 adjacent thereto; the friction roller being mountedon a driven shaft 49 and imparting movement to the roller- 47 which isimparted in turn to the roller 46. The roller 48 is driven from theshaft 25 by means of the pinions 50, 51, 52, 53, 54, 55, 56, 57 and 58,as clearly illustrated in Fig. 3.

I have found that a materially advantageous result may be obtained byhaving the beveled edge of the anvil or shear plate under suiiicienttension to cause it to engage the knife or cutting blade before any workis introduced; a condition which insures proper co-action of the goodswhen the blades are introduced. By this means, an automatic orself-regulation of the coacting means, the cutting blade and shearplate, can be effected, and any kind of goods, whether thick or thin,can be accommodated and successfully operated upon. At the same time,the yielding edge of the shear plate will conform to the cutting bladeand take up any irregularity that may occur therein; the active edge ofthe cutting blade and the edge of the shear plate being disposed inabsolute parallelism as before described. To this end therefore theshear plate 45is provided with a separable beveled edge 60 hinged tosaid plate at 61 and held in an elevated position and in contact withthe cutting blade by means of springs 62 interposed between the same andthe bed or table 3; the latter being recessed to accommodate saidsprings. Other forms of cushioning or tension supporting means may beemployed, if desired. During the cutting operation, this edge yieldssufficiently to accommodate the thickness of the goods under operation.

The cutting action is clearly illustrated in Fig. 6, and as theembroidered edge 00 of the fabric to be trimmed is sufficiently stout orheavy, the knife will shear up to the same, cutting in a substantiallyhori- Zontal plane; the fabric directly at the point of severence beingdisposed substantially in a vertical plane. In some instances, theentire shear plate 45 may be yieldingly sup ported.

The present machine, as explained, has been devised to cut or trim twostrips of embroidery edging at the same time, but it will be understoodthat I may employ a single set of cotiperating trimming or cuttingdevices, or a gang of the same, driven in the same or substantially thesame manner as herein described.

The knife which I employ is continuous in length, and the object of thisis to insure a suitable cutting edge which is uniformly of the samecharacter throughout the length of said knife. Preferably both faces ofthe strip of material forming the knife are beveled to form this cuttingedge. The knife lies between the walls of the guardor guide 7 with. itsedge in absolute parallelism therewith and with the anvil or shear platethe guard being cut away at 63 at the point where the knife acts. Whensuch knife is brought into engagement with the fabric, the cutting ortrimming of the same from the embroidered edge is assured without anydamage to such edge.

I claim:

1. A yielding shear plate for engagement by and cooperation with ahorizontally disposed knife reciprocated adjacent to and in line withsaid shear plate, in combination with said knife and means forreciprocating the same. i

2. A shear plate having a yielding edge for engagement by andcooperation with a horizontally disposedknife reciprocated adjacent toand in line with said shear plate, in combination with said knife andmeans for r-ciprocating the same.

3. A shear plate having a beveled yielding edge for engagement by andcooperation with a horizontally disposed knife reciprocated adjacent toand in line wlth said shear plate, in combination with said knife andmeans for reciprocating the same.

i. A shear plate having a yielding edge for engagement by andcooperation with a horizontally disposed knife reciprgcated adjacent toand in line with said shear plate. and means for pivotally mounting saidyielding edge to the shear plate, in combination with said knife andmeans for reciprocating the same.

5. A shear plate comprising a body relatively fixed, and an edge hingedto said body for engagement by and cooperatlon with a horizontallydisposed knife reciprocated adjacent to and in line with said shearplate, in combination with said knife and means for reciprocating thesame.

6. The combination of a shear plate, a working edge hinged thereto, ahorizontally disposed knife engaging and cooperating with said edge andreciprocated adjacent to and in line with said shear plate, and meansfor yieldingly supporting said edge.

7. The combination of a shear plate, a working edge hinged thereto, ahorizontally disposed knife engaging and cooperating with said edge andreciprocated adjacent to and in linewith said shear plate, and springsfor yieldingly supporting said edge.

8. In an embroidery cutting or trimming machine, the combination of awork table, a shear plate carried thereby, a horizontally disposed knifearranged to coact with said shear plate and reciprocated ad acent to andin line with said shear plate, and means for supporting the edge of saidshear plate in contact with the knife. 7

9. In an embroidery cutting or trimming machine, the combination of awork table, a shear plate carried thereby, a horizontally disposed knifereciprocated adjacent to and in line with said shear plate, and ayielding edge with which said knife coacts carried by the shear plate.

10. In an embroidery cutting or trimming machine, the combination of awork table, a shear plate carried thereby, a horizontally disposed knifereciprocated adjacent to and in line with said shear plate, and a springsupported edge with which said knife coacts carried by said shear plate.

v11. Inan embroidery cutting or trimming machine,the combination of awork table, a shear plate carried by said table, a beveled edgepivotally connected to the body of the shear plate, a horizontallydisposed cutting lade arranged in parallelism with the beveled edge ofsaid shear plate and reciprocatedadjacent to and in line therewith, and

springs for supporting said edge in contact I with the cutting blade.

12. In a cutting apparatus for removing waste from embroidered fabric, astraight reciprocable blade, an opposing member to support the fabricparallel to and projecting above the edge of the blade and inclined tothe side of the latter whereby a shaving action'is imparted thereto,said blade and opposing member forming a slot of suflicient width topermit only the passage of the unembroidered part of the fabric.

13. In a cutting apparatus forremoving waste from embroidered fabric, astraight blade, an opposing member to support the fabric, parallel toand projecting above the edge of the blade and inclined to the side ofthe blade, whereby a shaving action is imparted to the latter, saidblade and opa posing member formlng a slot of sufficient width alongtheentire blade to permit only the passage of the unembroidered part of thefabric, and means for effecting reciprocation of said blade withrespectto the opposing member.

ll. A device of the character described comprising a reciprocablecutter, a stationary: opposing member mounted longitudinally thereof andforming a slot therewith of uniform width through which the back to thecutter to increase or diminish the width of the slot, means toreciprocate the cutter parallel to and longitudinally of the opposingmember.

16. A device for cutting embroidery background along the embroiderededge, comprising a stationary member, a knife carrying member movablelongitudinally of and parallel to the stationary member, a knife blademounted on the carrying memher, and an adjustable member mounted on thestationary member cooperating with the blade to form a slot throughwhich the background of the embroidery is passed.

17. In an embroidery cutting or trimming machine, the combination of awork table, a shear plate carried thereby, a knife arranged toreciprocate in line'with and adjacent said shear plate in substantiallythe same plane as the material operated upon, said knife having itscutting edge horizontally disposed, and means for reciprocating saidknife.

18. The combination of ahorizontal Work table, a shear plate carriedthereby, a knife having its cutting edge horizontally disposed andarranged to reciprocate in line with and adjacent to said shear plateand to cut in substantially the same plane as the material operatedupon, and means for reciprocating said knife.

19. In a cutting or trimming machine for removing waste from embroideredfabric, the combination of means for feeding the fabric to be trimmed,and cutting means for lateral engagement with such fabric to remove thewaste adjacent an embroidered edge including a knife reciprocable insubstantially the same plane as the material op erated upon.

20. In a cutting or trimming machine for removing waste from embroideredfabric, the combination of means for feeding the fabric to be trimmed,cutting means for lat eral engagement with such fabric to remove wasteadjacent an embroidered edge including a knife reciprocable insubstantially the same plane as the material operated upon with itscutting edge horizontally disposed, and means for reciprocating saidknife.

. in a cutting or trimming machine for removing waste from embroideredfabric, the combination of means for feeding the fabric to be trimmed,cutting means to remove waste adjacent an embroidered edge including aknife reciprocable in substantially the same plane as the material operated upon with its cutting edge horizontally disposed, and means forreciprocating said knife, said knife being mounted to move in linediagonally with respect to the material operated upon.

.22. In a cutting or trimming machine for removing waste fromembroidered fabric, the combination of a work table, cutting means toremove waste adjacent an embroidered edge including a knife reciprocablein substantially the same plane as the material operated upon with itscutting edge horizontally disposed and mounted adjacent said work table,means for reciprocating said knife diagonally with respect to the workto be operated upon, and means for feeding said work to and from theknife.

In testimony whereof, I have signed my Copies of this patent may beobtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C.

